// Copyright (C) 2019-2020 Zilliz. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License
// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
// or implied. See the License for the specific language governing permissions and limitations under the License.

#pragma once

#include <string>

#include "db/meta/condition/MetaBaseCombination.h"
#include "db/meta/condition/MetaBaseFilter.h"
#include "db/meta/condition/MetaFinder.h"

namespace milvus::engine::meta {

class MetaFilterCombination : public MetaBaseCombination {
 public:
    explicit MetaFilterCombination(MetaFilterPtr filter) : MetaBaseCombination(one_), filter_(filter) {
    }

    ~MetaFilterCombination() override = default;

    bool
    FieldsFind(const Fields& fields) const override;

    std::string
    Dump() const override;

 private:
    MetaFilterPtr filter_;
};

class MetaRelationCombination : public MetaBaseCombination {
 public:
    MetaRelationCombination(Comb comb, MetaConditionPtr lcond, MetaConditionPtr rcond);

    ~MetaRelationCombination() override = default;

    bool
    FieldsFind(const Fields& fields) const override;

    std::string
    Dump() const override;

 private:
    MetaConditionPtr lcond_;
    MetaConditionPtr rcond_;
};

}  // namespace milvus::engine::meta
